Vibration Measurement Systems

Abstract

The measuring system according to the invention comprises a measuring transducer (MW) having: a tube arrangement for conveying a flowing fluid; an exciter arrangement for converting electrical power into mechanical power for exciting and maintaining forced mechanical oscillations of the tube arrangement; and a sensor arrangement for recording the mechanical oscillations of the tube arrangement, as well as measuring and operating electronics (ME) electrically coupled to the measuring transducer (MW), i.e. to its exciter arrangement and to its sensor arrangement, having: two driver circuits (Exc1, Exc2) for supplying electrical power to the exciter arrangement; and two measuring transmitter circuits (DSV1, DSV2) for processing the oscillating measurement signals of the sensor arrangement and for activating in each case one of the driver circuits (Exc1, Exc2). The tube arrangement comprises two flow dividers (21, 22) each having four flow openings and four identically constructed connecting tubes (111, 112, 121, 122) only in pairs, each of which is suitable for a measured substance to flow through and during which it is caused to vibrate. The exciter device comprises: an oscillation exciter (31) mechanically connected to the tubes (111, 121) and electrically connected to a driver circuit (Exc1); and an oscillation exciter (32) mechanically connected to the other tubes (121, 122) and electrically connected to a driver circuit (Exc2). The sensor device comprises: two oscillation sensors (51, 52) mechanically connected to the tubes (111, 121) and electrically connected to a measurement transmitter circuit (DSV1); and another two oscillation sensors (53, 54) mechanically connected to the other tubes (121, 122) and electrically connected to a measurement transmitter circuit (DSV2). The measuring transmitter circuit (DSV1) is suitable for receiving and processing the oscillating measurement signal from the oscillating sensor (51, 52), i.e. determining a first partial mass flow measurement value (Xm1) representing the mass flow of the measured substance flowing through the pipe (111, 112) and outputting it to the measuring transmitter circuit (DSV2), and the measuring transmitter circuit (DSV2) is suitable for receiving and processing the oscillating measurement signal and the partial mass flow measurement value (Xm1) from the oscillating sensor (53, 54), i.e. determining a total mass flow measurement value (Xm) representing the total mass flow of the measured substance flowing through the pipe (111, 112, 121, 122).

Description

Technical Field

[0001] The present invention relates to a vibration measurement system, in particular to a vibration measurement system embodied as a Coriolis mass flow measurement device or a Coriolis mass flow / density measurement device. Background Art

[0002] For example, a measuring system in the field of the invention is described in USA 2017 / 0356777. The measuring system comprises a measuring transducer having: a tube device for conveying a flowing fluid; an exciter device for converting electrical power into mechanical power for exciting and maintaining forced mechanical oscillations of the tube device; and a sensor device for recording the mechanical oscillations of the tube device and providing an oscillating measurement signal, which in each case represents an oscillating movement of the tube device, and a measuring and operating electronics device electrically coupled to the measuring transducer, i.e., to its exciter device as well as to its sensor device, wherein the measuring and operating electronics device has a first and a second drive circuit for supplying power to the exciter device and to the measuring transmitter circuit, so as to process the oscillating measurement signal of the sensor device and to activate the driver circuit.

[0003] The tube arrangement comprises: on the inlet side, a first flow splitter, which is used for the pipeline branching and has exactly four flow openings, on the outlet side, a second flow splitter, which is embodied identically to the first flow splitter, but in this case serves as a pipeline joint and has exactly four flow openings, and four tubes of identical construction only in pairs, which are partially bent in each case, namely a first tube, a second tube of identical construction to the first tube, a third tube, and a fourth tube of identical construction only to the third tube. Each tube of the tube arrangement extends for a certain tube length, in each case from a first tube end to a second tube end, and in each case comprises a tube lumen, which is surrounded by a metal tube wall and in each case extends from the first tube end to the second tube end. Furthermore, each tube of the tube arrangement is in each case connected to each of the first and second flow dividers, so that the first tube communicates at its first end with the first flow opening of the first flow divider and at its second end with the first flow opening of the second flow divider, the second tube communicates at its first end with the second flow opening of the first flow divider and at its second end with the second flow opening of the second flow divider, the third tube communicates at its first end with the third flow opening of the first flow divider and at its second end with the third flow opening of the second flow divider, the fourth tube communicates at its first end with the fourth flow opening of the first flow divider and at its second end with the fourth flow opening of the second flow divider. Furthermore, each tube of the tube arrangement is in each case also suitable for a measured substance to flow through and during which it is caused to vibrate.

[0004] The exciter device comprises two electrodynamic oscillation exciters, wherein a first oscillation exciter is mechanically connected to both the first tube and the second tube and electrically connected to the first driver circuit, and a second oscillation exciter is mechanically connected to both the third tube and the fourth tube and electrically connected to the second driver circuit. In addition, each of the first and second oscillation exciters is in each case suitable for converting electrical power into mechanical power. The first driver circuit is further adapted to generate an electrical first driver signal and thereby power only the first oscillation exciter so that the first and second tubes at least partially perform the desired oscillations, i.e. opposite and equal forced mechanical oscillations having at least a first desired frequency, i.e. an oscillation frequency predetermined by the first driver signal and corresponding to a first resonance frequency of the tube arrangement, which oscillations are suitable for generating a Coriolis force in the measured material flowing through the first and second tubes that depends in each case on the mass flow rate, while the second driver circuit is adapted to generate an electrical second driver signal and thereby power only the second oscillation exciter so that the third and fourth tubes at least partially perform the desired oscillations, i.e. opposite and equal forced mechanical oscillations having at least a second desired frequency, i.e. an oscillation frequency predetermined by the second driver signal and corresponding to a second resonance frequency of the tube arrangement, which oscillations are suitable for generating a Coriolis force in the measured material flowing through the third and fourth tubes that depends in each case on the mass flow rate.

[0005] For recording the oscillations of the tube arrangement, the sensor arrangement comprises four electrodynamic oscillation sensors spaced apart from one another, wherein a first oscillation sensor and a second oscillation sensor are in each case mechanically connected to both the first tube and the second tube and in each case electrically connected to the measurement transmitter circuit, and a third oscillation sensor and a fourth oscillation sensor are in each case mechanically connected to both the third tube and the fourth tube and in each case likewise electrically connected to the measurement transmitter circuit. In addition, each oscillation sensor is in each case suitable for recording the oscillatory movement of the first, second, third or fourth tube to which it is mechanically connected and for providing a first, second, third or fourth oscillation measurement signal representing the oscillatory movement.

[0006] The measuring transmitter circuit is adapted to receive and process the first oscillating measurement signal of the first oscillating sensor and the second oscillating measurement signal of the second oscillating sensor, i.e. determine a first partial mass flow measurement value representing the mass flow of the measured substance flowing through the first and second tubes. In addition, the measuring transmitter circuit is also adapted to receive and process the third oscillating measurement signal of the third oscillating sensor and the fourth oscillating measurement signal of the fourth oscillating sensor, i.e. determine a second partial mass flow measurement value representing the mass flow of the measured substance flowing through the third and fourth tubes, and determine a total flow measurement value representing the total mass flow of the measured substance flowing through the first, second, third and fourth tubes based on the first and second partial mass flow measurement values.

[0007] In the above-described measuring system, a special measuring transmitter circuit must therefore be used for evaluating the oscillation, i.e. a measuring transmitter circuit which processes all four oscillating measuring signals simultaneously. This means, in particular, that the development and production of the measuring transmitter circuit is very complex on the one hand and that its component complexity is very high on the other hand and that it can only be used in very limited quantities. Such a measuring transmitter circuit or the measuring and operating electronics formed thereby therefore involves relatively high marginal costs. Furthermore, a failure of just one of the four channels for the oscillating measuring signals leads to a complete failure of the measuring and operating electronics or the measuring system formed thereby, which can only be remedied by replacing the entire measuring transmitter circuit. Summary of the invention

[0008] Starting from the above-mentioned prior art, the object of the present invention is to improve a vibration measuring system so that its measuring and operating electronics can, on the one hand, independently excite the oscillations of two pairs of tubes and independently evaluate the two pairs of oscillation signals and, on the other hand, have a simpler and more cost-effective construction.

[0009] According to the invention, this object is achieved by a measuring system according to the invention, i.e. by a vibrating measuring system, such as a Coriolis mass flow measuring device or a Coriolis mass flow / density measuring device, for measuring and / or monitoring at least one flow parameter, e.g. a flow parameter that can vary over time, e.g. a mass flow rate, a volume flow rate and / or a flow velocity, and / or for measuring and / or monitoring at least one material parameter, e.g. a material parameter that can vary over time, e.g. a density and / or a viscosity of a flowing measured material (e.g. a gas, a liquid or a dispersion).

[0010] The measuring system comprises a measuring transducer having a tube arrangement for conveying a flowing fluid, an exciter arrangement for converting electrical power into mechanical power for exciting and maintaining forced mechanical oscillations of the tube arrangement, and a sensor arrangement for recording the mechanical oscillations of the tube arrangement and in each case providing an oscillating measurement signal representative of the oscillating movement of the tube arrangement,

[0011] And the measuring system further comprises measuring and operating electronic equipment electrically coupled to the measuring transducer, i.e. electrically coupled to its exciter device and to its sensor device, for example, electrically coupled via an electrical connection line, and having: a first driver circuit to supply electrical power to the exciter device; a first measurement transmitter circuit to process the oscillating measurement signal of the sensor device and to activate the first driver circuit; a second driver circuit to supply electrical power to the exciter device; and a second measurement transmitter circuit to process the oscillating measurement signal of the sensor device and to activate the second driver circuit.

[0012] The tube arrangement of the measuring system of the invention comprises in particular: a first flow splitter, in particular a first flow splitter used as a pipeline branch and / or a first flow splitter on the inlet side, the first flow splitter in particular having exactly four flow openings; a second flow splitter, in particular a second flow splitter which is embodied identically to the first flow splitter and / or used as a pipeline connection and / or a second flow splitter on the outlet side, the second flow splitter in particular having exactly four flow openings; and four tubes of identical construction only in pairs, namely a first tube, in particular a first tube which is at least partially bent, a second tube which is identical in construction to the first tube, a third tube, in particular a third tube which is at least partially bent, and a fourth tube which is identical in construction to the third tube. Each of the first, second, third and fourth tubes in the tube arrangement extends over a certain tube length, in each case from a first end of the tube to a second end of the tube, and in each case comprises a tube cavity which is surrounded by a tube wall, in particular a metal tube wall, and the tube cavity in each case extends from the first end of the tube to the second end of the tube. Furthermore, each of the first, second, third and fourth tubes of the tube arrangement is in each case connected to each of the first and second flow diverters so that the first tube is connected at its first end to the first flow opening of the first flow diverter and at its second end to the first flow opening of the second flow diverter, the second tube is connected at its first end to the second flow opening of the first flow diverter and at its second end to the second flow opening of the second flow diverter, the third tube is connected at its first end to the third flow opening of the first flow diverter and at its second end to the third flow opening of the second flow diverter, the fourth tube is connected at its first end to the fourth flow opening of the first flow diverter and at its second end to the fourth flow opening of the second flow diverter, and each of the first, second, third and fourth tubes of the tube arrangement is in each case suitable for the measured substance to flow through and to be caused to vibrate during this process.

[0013] The exciter device of the measuring system of the present invention comprises two, in particular electric and / or identically constructed oscillation exciters, wherein a first oscillation exciter mechanically couples both a first tube and a second tube and is electrically connected, in particular only electrically connected, to a first driver circuit, and a second oscillation exciter mechanically couples both a third tube and a fourth tube and is electrically connected, in particular only electrically connected, to a second driver circuit, wherein each of the first and second oscillation exciters is in each case suitable for converting electrical power into mechanical power.

[0014] The first driver circuit is in turn adapted to generate an electrical first driver signal and thereby supply electrical power, in particular electrical power only to the first oscillation exciter, so that the first and second tubes at least partially perform desired oscillations, i.e. oppositely equal forced mechanical oscillations having at least a first desired frequency, i.e. an oscillation frequency predetermined by the first driver signal and corresponding to a first resonance frequency of the tube arrangement, which oscillations are suitable for generating Coriolis forces in the measured substance flowing through the first and second tubes, which in each case depend on the mass flow rate, and

[0015] The second driver circuit is adapted to generate an electrical second driver signal and thereby supply electrical power, in particular electrical power only to the second oscillation exciter, so that the third and fourth tubes at least partially perform desired oscillations, i.e. opposite and equal forced mechanical oscillations having at least a second desired frequency, i.e. an oscillation frequency predetermined by the second driver signal and corresponding to a second resonance frequency of the tube arrangement, which oscillations are suitable for generating Coriolis forces in the measured substance flowing through the third and fourth tubes, which in each case depend on the mass flow rate.

[0016] The sensor device comprises four, in particular electrical and / or identically constructed and / or spaced apart oscillation sensors, wherein a first oscillation sensor and a second oscillation sensor are in each case mechanically connected to both the first tube and the second tube and in each case are in particular electrically connected only to the first measurement transmitter circuit, and a third oscillation sensor and a fourth oscillation sensor are in each case mechanically connected to both the third tube and the fourth tube and in each case are in particular electrically connected only to the second measurement transmitter circuit. Each of the first, second, third and fourth oscillation sensors is in each case suitable for recording the oscillatory movement of the first, second, third or fourth tube to which it is mechanically connected and for providing a first, second, third or fourth, in particular electrical oscillation measurement signal representing the oscillatory movement.

[0017] the first measuring transmitter circuit in turn being adapted to receive and process a first oscillating measurement signal of the first oscillating sensor and a second oscillating measurement signal of the second oscillating sensor, i.e. determining a first, in particular digital, partial mass flow measurement value representative of the mass flow of the measured substance flowing through the first and second tubes and outputting it to the second measuring transmitter circuit, and

[0018] The second measuring transmitter circuit is suitable for receiving and processing a third oscillating measurement signal of the third oscillation sensor and a fourth oscillating measurement signal of the fourth oscillation sensor, as well as a first partial mass flow measurement value output by the first measuring transmitter circuit, i.e. determining an especially digital total flow measurement value representing the total mass flow of the measured substance flowing through the first, second, third and fourth tubes.

[0019] Furthermore, in a first embodiment of the invention, it is provided that the first driver circuit is electrically connected to the first measurement transmitter circuit, for example via a data bus, but is not electrically connected to the second measurement transmitter circuit, for example.

[0020] Furthermore, in a second embodiment of the invention, it is provided that the second driver circuit is electrically connected to the second measurement transmitter circuit, for example via a data bus, but is, for example, not electrically connected to the first measurement transmitter circuit.

[0021] Furthermore, in a third embodiment of the invention, it is provided that the first measurement transmitter circuit and the second measurement transmitter circuit are electrically connected to each other, for example via a digital bus.

[0022] Furthermore, in a fourth embodiment of the invention, it is provided that the first measurement transmitter circuit is formed by a first microprocessor. Furthermore, as a development of this embodiment, it is provided that the second measurement transmitter circuit is formed by a second microprocessor.

[0023] Furthermore, in a fifth embodiment of the invention, a second measuring transmitter circuit is provided which is adapted to use the third and fourth oscillating measurement signals to determine a digital second partial mass flow measurement value, for example representing the mass flow rate of the measured substance flowing through the third and fourth pipes. Furthermore, as a development of this embodiment, a second measuring transmitter circuit is provided which also uses the second partial mass flow measurement value to determine a total flow measurement value.

[0024] Furthermore, in a sixth embodiment of the invention, a sensor device is provided having at least two temperature sensors, in particular temperature sensors of identical construction and / or spaced apart from one another, wherein a first temperature sensor is mechanically connected to one of the first, second, third and fourth tubes, in particular mechanically connected to the first tube or the second tube, and in each case in particular only electrically connected to a second measurement transmitter circuit, and a second temperature sensor is mechanically connected to one of the first, second, third and fourth tubes, in particular mechanically connected to the same tube as the first temperature sensor, and in each case in particular only electrically connected to the second measurement transmitter circuit, and each of the first and second temperature sensors is in each case suitable for recording the temperature of the first, second, third or fourth tube to which it is mechanically connected and for providing a first or second, in particular electrical, temperature measurement signal representing the temperature. Furthermore, as a development of this embodiment of the invention, the second measurement transmitter circuit is suitable for receiving and processing the first temperature measurement signal from the first temperature sensor, i.e. determining a first, in particular digital, temperature measurement value representing the temperature recorded by the first temperature sensor or a temperature associated therewith. In addition, the second measurement transmitter circuit is adapted to receive and process a second temperature measurement signal from the second temperature sensor, i.e. to determine an in particular digital second temperature measurement value representing a temperature recorded by the second temperature sensor or a temperature related thereto, e.g. in order to also determine a total mass flow measurement value using the first and second temperature measurement values. Alternatively or as a complement, the second measurement transmitter circuit can also be adapted to output at least a first temperature measurement value, e.g. a first and a second temperature measurement value, to the first measurement transmitter circuit, and the first measurement transmitter circuit can also be adapted to receive and evaluate the temperature measurement values ​​output from the first measurement transmitter circuit, e.g. in order to also determine a first partial mass flow measurement value and / or a first partial density measurement value using at least the first temperature measurement value.

[0025] Furthermore, in a seventh embodiment of the invention, it is provided that the first measurement transmitter circuit is adapted to determine, based on at least one of the first and second oscillating measurement signals, a first, in particular digital, partial density measurement value representing the density of the measured substance flowing through the first and second tubes and output it to the second measurement transmitter circuit. As a development of this embodiment of the invention, the second measurement transmitter circuit is additionally adapted to receive the first partial density measurement value from the first measurement transmitter circuit and to determine, based on the first partial density measurement value and at least one of the third and fourth oscillating measurement signals, a digital total density measurement value representing the density of the measured substance flowing through the first, second, third and fourth tubes.

[0026] Furthermore, in an eighth embodiment of the invention, the second measurement transmitter circuit is adapted to determine, based on at least one of the third and fourth oscillating measurement signals, a second partial density measurement value, in particular a digital, representing the density of the measured substance flowing through the third and fourth tubes. Furthermore, as a development of this embodiment of the invention, the first measurement transmitter circuit is adapted to determine, based on at least one of the first and second oscillating measurement signals, a first partial density measurement value, in particular a digital, representing the density of the measured substance flowing through the first and second tubes, and output it to the second measurement transmitter circuit, and the second measurement transmitter circuit is adapted to receive the first partial density measurement value outputted from the first measurement transmitter circuit and to determine, based on the first and second partial density measurement values, a total density measurement value, in particular a digital, representing the average density of the measured substance flowing through the first, second, third and fourth tubes.

[0027] In a first additional development of the invention, the measuring system further comprises: a transducer housing, which encloses the first, second, third and fourth tubes, wherein the transducer housing has at least one, in particular liquid-tightly sealed cavity, and wherein the first, second, third and fourth tubes are each arranged in the cavity. Furthermore, as a development of this embodiment of the invention, it is provided that the sensor device has at least a third temperature sensor, and the third temperature sensor is mechanically connected to the transducer housing and is electrically connected, in particular only electrically connected, to the second measurement transmitter circuit and is suitable for recording the temperature of the transducer housing and providing a third temperature measurement signal, in particular an electrical measurement signal representing the temperature. Furthermore, the second measurement transmitter circuit can be suitable for receiving and processing a third temperature measurement signal of the third temperature sensor, i.e. determining a third, in particular digital, temperature measurement value representing the temperature recorded by the third temperature sensor or a temperature related thereto, for example in order to also determine the total mass flow measurement value using the third temperature measurement value. Alternatively or in addition, the second measurement transmitter circuit can also be adapted to output a third temperature measurement signal to the first measurement transmitter circuit, and the first measurement transmitter circuit can then be adapted to receive and evaluate the third temperature measurement value, ie also use the third temperature measurement value to determine the first mass flow measurement value.

[0028] In a second additional development of the invention, the measuring system further comprises: an in particular explosion-proof or pressure-resistant electronics protection housing, wherein, for example, both the first and second driver circuits and the first and second measurement transmitter circuits are accommodated in the electronics protection housing, in particular protected against water spray.

[0029] In a third additional development of the invention, the measuring and operating electronic device further comprises: an interface circuit, for example an interface circuit housed together with a first and a second driver circuit and a first and a second measurement transmitter circuit in an electronic device protective housing of the measuring system to output measurement values, in particular digital measurement values ​​and / or measurement values ​​determined by the second measurement transmitter circuit.

[0030] In a first embodiment of a third additional development of the invention, it is provided that the interface circuit is electrically connected to the second measurement transmitter circuit, but, for example, not electrically connected to the first measurement transmitter circuit.

[0031] In a second embodiment of a third additional development of the invention, the second measurement transmitter circuit is suitable for outputting the total flow measurement value determined by it to the interface circuit, and the interface circuit is suitable for receiving the total mass flow measurement values ​​output from the second measurement transmitter circuit and converting these values ​​into a mass flow output signal that provides the total mass flow measurement value and, for example, also complies with industry standards.

[0032] The invention and its advantageous embodiments will now be explained in more detail based on the embodiment examples shown in the figures illustrated in the drawings. Components having the same or the same effect or the same function are provided with the same reference numerals in all figures; reference numerals which have already been shown in the preceding figures are omitted in the following figures when this is necessary for clarity or appears to be justified in another way. Furthermore, further advantageous embodiments or additional developments may be derived from the figures in the drawings and / or from the claims themselves, in particular also including combinations of aspects of the invention which were first only explained individually. BRIEF DESCRIPTION OF THE DRAWINGS

[0033] The diagram in the accompanying drawings is as follows:

[0034] Figure 1 , Figure 2A , Figure 2B are cross-sectional and / or perspective side views of various portions of the vibration measurement system;

[0035] Figure 3A , Figure 3B Is suitable Figure 1 , Figure 2A or Figure 2B Cross-sectional and / or perspective side views of different parts of a measuring transducer of a vibration measuring system;

[0036] Figure 4A , Figure 4B Shows Figure 3A , Figure 3B Two side views of the tube arrangement of the measuring transducer;

[0037] Figure 5A , Figure 5B Shows Figure 4A and Figure 4B Two additional side views of the tube arrangement of the measuring transducer;

[0038] Figure 6 The block diagram schematically shows the Figure 1 , Figure 2A or Figure 2BThe measuring and operating electronics of the vibration measuring system; and

[0039] Figure 7 The block diagram schematically shows the Figure 1 , Figure 2A or Figure 2B Another variant of the measuring and operating electronics of a vibration measuring system. DETAILED DESCRIPTION

[0040] exist Figure 1 Figure 2A and Figure 2B Schematically shown in the figure are examples of embodiments or variants of embodiments of a vibration measuring system for measuring and / or monitoring at least one flow parameter, in particular a flow parameter that can vary over time, such as a mass flow, a volume flow and / or a flow velocity, and / or for measuring and / or monitoring at least one material parameter, in particular a material parameter that can vary over time, such as a density and / or a viscosity of a fluid FL that flows at least from time to time. The measuring system is in particular arranged or adapted to be included in the course of a process line that transports a fluid FL (for example a gas, a liquid or a dispersion) that serves as a measured substance and / or a process line that flows through a fluid FL that is formed as a pipe and is supplied and discharged by the process line during operation.

[0041] like Figure 3A , Figure 3B As shown in, or from Figure 1 , Figure 2A , Figure 2B , Figure 3A and Figure 3B As can be seen directly from the combination of, the measuring system comprises a measuring transducer MW having: a tube arrangement formed by four tubes (111, 121, 112, 122) which are embodied identically only in pairs, for example tubes which provide mutually deviating flow resistances to parallel flow paths and are formed by two flow dividers (21, 22) connected to the tubes; an exciter arrangement (31, 32) for converting electrical power into mechanical power in order to excite and maintain forced mechanical oscillations of the tubes; and a sensor arrangement (41, 42, 43, 44) for recording the mechanical oscillations of the tube arrangement and in each case providing an oscillating measurement signal representative of the oscillating movement of the tube arrangement, in particular of their tubes. In addition, for example: a temperature measuring device for recording the temperature in the tube arrangement; and / or a strain measuring device for recording the mechanical stresses in the tube arrangement can also be provided in the measuring transducer.

[0042] According to an additional embodiment of the present invention, the tube device includes a curved first tube 111, a curved second tube 121 having the same structure as the tube 111, a curved third tube 112, and a fourth tube 122 having the same structure as the tube 112 and thus having a different structure from both the tubes 111 and 121. Figure 2A , Figure 2B , Figure 3A , Figure 3B , Figure 4A , Figure 4B , Figure 5A as well as Figure 5B As shown in, or directly apparent from a combination thereof, the tube arrangement comprises a first flow splitter 21 with four flow openings 21-1, 21-2, 21-3, 21-4, and a second flow splitter 22, which is embodied, for example, as a flow splitter identical to the flow splitter 21, and likewise with four flow openings 22-1, 22-2, 22-3, 24-4. Each of the tubes 111, 112, 121, 122 in each case extends over a certain tube length from a first tube end to a second tube end and in each case comprises a tube lumen which is surrounded by a tube wall, for example a metal tube wall, and the tube lumen in each case extends from the first tube end to the second tube end. Furthermore, as also shown in Figure 3A and Figure 3B As shown in, or from Figure 2A , Figure 2B , Figure 3A , Figure 3B , Figure 4A as well as Figure 4B It can be directly seen from the combination that each of the tubes 111, 112, 121, 122 is in each case connected to each of the two diverters 21, 22, for example by material bonding, by force and / or shape interlocking, so that the first end of the tube 111 is connected to the first flow opening 21-1 of the diverter 21, and the second end is connected to the first flow opening 22-1 of the diverter 22, the first end of the tube 121 is connected to the second flow opening 21-2 of the diverter 21, and the second end is connected to the second flow opening 22-2 of the diverter 22, the first end of the tube 112 is connected to the third flow opening 21-3 of the diverter 21, and the second end is connected to the third flow opening 22-3 of the diverter 22, the first end of the tube 122 is connected to the fourth flow opening 21-4 of the diverter 21, and the second end is connected to the fourth flow opening 22-4 of the diverter 22. Furthermore, each tube 111, 112, 121, 122 of the tube arrangement is suitable in each case for a substance to be measured to flow through and to be caused to vibrate during this process. Figure 2A , Figure 2B , Figure 3A , Figure 3B , Figure 4A as well as Figure 4BIt can be seen from the combination that the splitter 21 can be arranged at the inlet side in the flow direction of the fluid FL and used as a pipeline branch, and the splitter 22 can be arranged at the outlet side in the flow direction of the fluid FL and used as a pipeline joint. In addition, in an additional embodiment of the present invention, a pipe device is provided with exactly four pipes, so that in addition to the above-mentioned pipes 111, 112, 121, and 122, no further pipes are connected to the splitter 21 and the splitter 22. In this case, the above-mentioned pipe length corresponds to the straightened length, or the length of the virtual center line of the pipe, wherein the pipe length of pipe 111 is equal to the pipe length of pipe 121, and the pipe length of pipe 121 is equal to the pipe length of pipe 122. In an additional embodiment of the present invention, the pipe length of pipe 111 is also only equal to the pipe length of pipe 121, which is greater than the pipe lengths of both pipes 121 and pipe 122, and the pipe length of pipe 121 is also only equal to the pipe length of pipe 122, which is less than the pipe lengths of both pipes 111 and pipe 112. In each case, the tube wall of each tube 111, 121, 112, 122 of the tube arrangement has a predetermined, e.g. also substantially uniform thickness and, as is very common in the case of tube arrangements of the type in question, or measuring transducers or measuring systems formed thereby, can be, for example, of the same material and / or metal, in particular in each case stainless steel, or in each case a nickel-based alloy. In addition, for example, in each case the tubes 111, 121, 112, 122 can be embodied in one piece, e.g. seamless, or, at least in the case of metal tube walls, with weld seams, and / or can be formed in each case by bending a tubular semi-finished part, e.g. so that each of the tubes 111, 121, 112, 122 and also as Figure 2A , Figure 2B , Figure 3A and Figure 3B, in each case are substantially V-shaped or have a V-shaped profile and / or each tube thus has a tube in a single (bent) plane. In an additional embodiment of the invention, in each case each tube has a certain caliber, i.e. an inner diameter, which is not less than 20 mm, for example also greater than 40 mm and / or has the same caliber as each other tube. Since the two tubes 111, 121 or the two tubes 121, 122 are of the same construction, the above-mentioned caliber of tube 111 is equal to the caliber of tube 121, or the caliber of tube 121 is equal to the caliber of tube 122. In an additional embodiment of the invention, the caliber of each of the tubes 111, 112, 121, 122 is equal to the caliber of each of the other tubes 111, 112, 121 and 122, and / or each of the tubes 111, 112, 121 and 122 has in each case a certain tube length to caliber ratio, which is calculated as the quotient of the tube length and the caliber, for example greater than 25 (25:1), however, also less than 30 (30:1). In an additional embodiment of the invention, the tube wall of each tube has in each case a minimum thickness, which is not less than 1 mm, for example also greater than 1.5 mm and / or equal to the minimum thickness of the tube wall of each of the other tubes. Since the two tubes 111, 121 or the two tubes 121, 122 are constructed identically, the above-mentioned minimum thickness of the tube wall of tube 111 is equal to the minimum thickness of the tube wall of tube 121, or the minimum thickness of the tube wall of tube 121 is equal to the minimum thickness of the tube wall of tube 122. In an additional embodiment of the invention, the above-mentioned thickness of the tube wall of each of the tubes 111, 112, 121, 122 is equal to the minimum thickness of the tube wall of each of the other tubes 111, 112, 121 and 122. In order to connect the tube device, or the measuring transducer or the measuring system formed thereby, through the above-mentioned process pipeline conveying the fluid FL, the flow divider 21 can additionally have a first connecting flange, for example, a first connecting flange for connecting the tube device to a pipeline section of the process supply pipeline of the fluid FL during operation, and the flow divider 22 can have a second connecting flange, for example, a second connecting flange for connecting the tube device to a pipeline section of the process pipeline for removing the fluid FL. In each case, a sealing surface for example for liquid-tightness or leak-proofness can be embodied on each of the above-mentioned connecting flanges to connect the tube device to the corresponding pipeline section of the process pipeline. Each of the two sealing surfaces can have a minimum diameter, which defines the nominal diameter of the measuring transducer and has a size greater than 100 mm, and / or a minimum spacing, which in this case defines the tube arrangement, or the installation length of the measuring transducer formed by the other sealing surfaces, and has a size greater than 1000 mm and / or less than 3000 mm.

[0043] Furthermore, the tubes 111, 121, 112, 122 and the flow dividers 21, 22 according to additional embodiments of the present invention are embodied and arranged as well as Figure 4A and Figure 4B As schematically shown in FIG. 1 , the tube arrangement has: a first virtual connection axis z1, which virtually connects the center of the flow opening 21-1 and the center of the flow opening 22-1 to each other; a second virtual connection axis z2, which virtually connects the center of the flow opening 21-2 and the center of the flow opening 22-2 to each other; a third virtual connection axis z3, which virtually connects the center of the flow opening 21-3 and the center of the flow opening 22-3 to each other; and a fourth virtual connection axis z4, which virtually connects the center of the flow opening 21-4 and the center of the flow opening 22-4 to each other, so that each of the virtual connection axes z1, z2, z3, z4 in each case extends parallel to each of the other connection axes z1, z2, z3, z4. In additional embodiments of the present invention, and from Figure 4A , Figure 4B , Figure 5A and Figure 5B It can also be directly seen that each tube 111, 121, 112, 122 is formed so that the tube has in each case: a first virtual symmetry plane yz-111, yz-121, yz-112, yz-122, the first virtual symmetry plane corresponding to, for example, a virtual longitudinal section plane of the tube and perpendicular thereto; a second virtual symmetry plane xy-111, xy-121, xy-112, xy-122, the second virtual symmetry plane corresponding to, for example, a virtual cross-sectional plane of the tube, and each tube 111, 121, 112, 122 is in each case mirror-symmetrical about both the first symmetry plane associated therewith and the second symmetry plane associated therewith. Furthermore, the tubes 111, 121, 112, 122 and the flow dividers 21, 22 may be embodied and arranged such that the virtual symmetry plane yz-111 extends parallel to the virtual symmetry plane yz-121, and the virtual symmetry plane yz-112 also extends parallel to the virtual symmetry plane yz-122, and / or the virtual symmetry plane yz-111 coincides with the virtual symmetry plane yz-112, and the virtual symmetry plane yz-121 also coincides with the virtual symmetry plane yz-122. Furthermore, in an additional embodiment, the tubes 111, 121, 112, 122 and the flow dividers 21, 22 are embodied and arranged such that the tube arrangement has at least a first virtual symmetry plane yz located between the tubes 111 and 121 and also between the tubes 112 and 122, with respect to which the tube arrangement is mirror-symmetrical, which is obtained from Figure 5A It can also be seen directly. In addition, from Figure 4A , Figure 4B , Figure 5A and Figure 5BIt can also be directly seen that the tube arrangement can be embodied so that its first symmetry plane yz is, for example, oriented parallel to each of the above-mentioned symmetry planes yz-111, yz-121, yz-112, yz-122 of the tubes 111, 121, 112, 122, and / or is arranged to have the same spacing in each case from each of the above-mentioned symmetry planes yz-111, yz-121, yz-112, yz-122 of the tubes 111, 121, 112, 122; for example, this also makes the two tubes 111, 121 parallel to each other and to the virtual symmetry plane yz of the tube arrangement in each case, the two tubes 112, 122 parallel to each other and to the virtual symmetry plane yz of the tube arrangement in each case, and / or the two tubes 111, 121 are located in a shared first tube plane, and the tubes 121, 122 are located in a shared second tube plane. Thus, according to an additional embodiment of the present invention, tube 111 has a minimum distance from the virtual symmetry plane yz of the tube device, which is equal to the minimum distance from the virtual symmetry plane yz of tube 112, and / or tube 121 has a minimum distance from the virtual symmetry plane yz of the tube device, which is equal to the minimum distance from the virtual symmetry plane yz of tube 122. In addition, in an additional embodiment of the present invention, it is provided that the tube device, in addition to the above-mentioned first virtual symmetry plane yz, also has a second virtual symmetry plane xy perpendicular thereto, which also virtually intersects each tube, and the tube device is also mirror-symmetric with respect to the second virtual symmetry plane xy.

[0044] Furthermore, each tube 111, 121, 112, 122 of the tube arrangement is in each case suitable for conveying a fluid within its lumen, in particular in each case a volume portion of a fluid FL to be measured and during which is caused to vibrate, for example in each case is subjected to forced mechanical oscillations, in particular causing a measurable effect corresponding to at least one measured variable and / or oscillations excited by an exciter arrangement, i.e. in each case forced mechanical oscillations about an associated static rest position; this in particular enables each tube of the tube arrangement to be caused to vibrate and during which a fluid flows through it starting at its first end in the direction of its second end. As is very common in the case of measuring transducers of the type being discussed, the forced mechanical oscillations may be at least partially forced bending oscillations of the tube about a virtual oscillation axis of the tube arrangement, i.e. in each case the oscillation axis virtually intersects the tube; this in particular also enables the (four) virtual oscillation axes, for example in the case of tubes in a static rest position, to be substantially parallel to each other and / or to the aforementioned virtual connecting axes z1, z2, z3, z4.

[0045] The exciter device is particularly configured and adapted to convert the electrical power supplied to it into mechanical power so that the tube device, in particular each of its tubes, at least sometimes performs a forced mechanical oscillation about a static rest position, and the sensor device is configured and adapted to record the mechanical oscillations of the tube device, in particular all mechanical oscillations and / or bending oscillations of the tube forced by the exciter device, and to provide a first oscillation measurement signal s41, a second oscillation measurement signal s42, a third oscillation measurement signal s43 and a fourth oscillation measurement signal s44, wherein, for example, the electrical oscillation measurement signals s41, s42, s43, s44 respectively represent the oscillating movement of one or more tubes 111, 121, 112, 122 of the tube device, for example, caused in each case by a variable voltage corresponding to the oscillating movement of the tube; this in particular causes the first and second oscillation measurement signals s41, s42 to be correlated with changes in the mass flow rate of the measured substance transported in the tube device, changing to a first phase difference That is, the difference between the phase angle of the oscillating measurement signal s41 and the phase angle of the oscillating measurement signal s42 changes, and the third and fourth oscillating measurement signals s43, s44 are related to the change in the mass flow rate of the measured substance transported in the pipe device, and the change is the second phase difference That is, the difference between the phase angle of the oscillating measurement signal s43 and the phase angle of the oscillating measurement signal s44 changes, and / or makes each of the above oscillating measurement signals s41, s42, s43, s44 related to the density change of the measured material transported in the tube device, and changes to the signal frequency for at least one spectral signal component. In order to excite and maintain the forced mechanical oscillation of the tube, the exciter device includes, for example, an electric first oscillation exciter 31, and at least, for example, an electric and / or embodied second oscillation exciter 32 that is identical to the first oscillation exciter 31, wherein the oscillation exciter 31 mechanically connects each of the two tubes 111, 121, and the oscillation exciter 32 mechanically connects each of the two tubes 112, 122. In addition, according to an embodiment of the present invention, each of the two oscillation exciters 31, 32 is provided with and is suitable for converting the electrical power supplied by the measuring and operating electronic device ME into mechanical power, in particular into mechanical power that affects the forced mechanical oscillations of the tubes 111, 121 or 112, 122 connected to its oscillation exciter 31 or 32, as the case may be; this in particular makes it possible for the oscillation exciter 31 to act differently on the two tubes 111, 121, i.e., to introduce or introduce only opposite and equal excitation forces in the two tubes 111, 121, and for the oscillation exciter 32 to act differently on the two tubes 112, 122, i.e., to introduce or introduce only opposite and equal excitation forces in the two tubes 112, 122.

[0046] In order to generate the above-mentioned oscillation measurement signals s41, s42, s43, s44, the sensor device includes: for example, an electric first oscillation sensor 41 for the oscillation measurement signal s41; for example, a second oscillation sensor 42 for the oscillation measurement signal s42 that is the same as the first oscillation sensor 41 and / or is embodied; for example, a third oscillation sensor for the oscillation measurement signal s43 that is the same as the first oscillation sensor 41 and / or is embodied; and for example, a fourth oscillation sensor 44 for the oscillation measurement signal s44 that is the same as the third oscillation sensor 43 and / or is embodied. Figure 3A , Figure 3B , Figure 4A and Figure 4BAs shown in, or as can be directly seen from their combination, both the oscillation sensor 41 and the oscillation sensor 42 are mechanically connected to each of the two tubes 111, 121, and both the oscillation sensor 43 and the oscillation sensor 44 are mechanically connected to each of the two tubes 112, 122, so that the oscillation sensor 41 and the oscillation sensor 43 record the inlet side oscillation movement of the tubes 111, 121, 112 and 122 in each case, as the case may be, and the oscillation sensor 42 and the oscillation sensor 44 record the outlet side oscillation movement of the tubes 111, 121, 112 and 122 respectively in each case. For example, the oscillation sensors may also be positioned such that the distance between the oscillation sensor 41 and the diverter 21 is equal to the distance between the oscillation sensor 42 and the diverter 22, and / or the distance between the oscillation sensor 43 and the diverter 21 is equal to the distance between the oscillation sensor 44 and the diverter 22, and / or such that the two oscillation sensors 41, 42 are in each case positioned equally far from the oscillation exciter 31, and / or the two oscillation sensors 43, 44 are in each case positioned equally far from the oscillation exciter 32. Furthermore, in an additional embodiment of the present invention, each oscillation sensor 41, 42 is provided with and suitable for recording the relative, and in given cases, opposite, equal oscillation movements of the tubes 111, 121, and converting them into oscillation measurement signals s41, s42 representing the oscillation movements. Furthermore, each oscillation sensor 43, 44 is provided with and suitable for recording the relative, and in given cases, opposite, equal oscillation movements of the tubes 112, 122, and converting them into oscillation measurement signals s43, s44 representing the oscillation movements. This in particular enables each oscillation sensor 41, 42 to record the oscillation movements of the two tubes 111, 121 differently, i.e., only converting the relative oscillation movement of the tubes 111, 121 into its oscillation measurement signal, and each oscillation sensor 43, 44 to record the oscillation movements of the two tubes 112, 122 differently, i.e., only converting the relative oscillation movement of the tubes 112, 122 into its oscillation measurement signal. In order to reduce the number of required connecting lines to the measuring and operating electronic device ME, the two oscillation sensors 41, 43 can be electrically connected in series so that the two oscillation measurement signals s41, s43 are superimposed on each other, and / or the two oscillation sensors 42, 44 can be electrically connected in series so that the two oscillation measurement signals s42, s44 are superimposed on each other.

[0047] Furthermore, in an additional embodiment of the present invention, it is specified and also as Figure 4A , Figure 4B , Figure 5A and Figure 5BAs shown in FIG. 1 , each tube 111, 112, 121, 122 of the tube arrangement has in each case: at least one straight, for example hollow cylindrical first section 111-1, 121-1, 112-1, 122-1, which is connected to the flow divider 21, for example by material bonding and / or by force and / or form interlocking; an arcuate, for example circular arc-shaped second section 111-2, 121-2, 112-2, 122-2, which is connected to the first section 111-1, 121-1, 112-1; and a second section 111-2, 121-2, 112-2, 122-2, which is connected to the flow divider 21, for example by material bonding and / or by force and / or form interlocking. , 122-1; straight, for example, a hollow cylindrical third section 111-3, 121-3, 112-3, 122-3, which is after the second section 111-2, 121-2, 112-2, 122-2; arc-shaped, for example, an arc-shaped fourth section 111-4, 121-4, 112-4, 122-4, which is after the third section 111-3, 121-3, 112-3, 122-3; straight, for example, a third section 111-3, 121-3, 112-3, 122-3 is similarly positioned 21-3, 112-3, 122-3 and / or a hollow cylindrical fifth section 111-5, 121-5, 112-5, 122-5, which is after the fourth section 111-4, 121-4, 112-4, 122-4; an arc-shaped, for example, a sixth section 111-6, 121-6, 112-6, 122-6 with the same structure as the second section 111-2, 121-2, 112-2, 122-2 and / or an arc-shaped sixth section 111-6, 121-6, 112-6, 122-6, which is after the fifth section 111-4, 121-4, 112-4, 122-4 1-5, 121-5, 112-5, 122-5; and an arcuate, for example hollow cylindrical seventh segment 111-7, 121-7, 112-7, 122-7 of the same construction as the first segment 111-1, 121-1, 112-1, 122-1, both of which are after the sixth segment 111-6, 121-6, 112-6, 122-6 and are also connected to the diverter 22, for example by material bonding and / or by force and / or shape interlocking. For the above case, in which the tube arrangement has a symmetry plane yz and a symmetry plane xy perpendicular thereto, in addition, according to an additional embodiment of the present invention, it is provided that the symmetry plane xy virtually intersects each tube, in each case in its fourth segment 111-4, 121-4, 112-4, 122-4. In an additional embodiment of the present invention, also as Figure 5B As shown in Figure 4A , Figure 4B , Figure 5A and Figure 5BIt can be seen from the combination that in each case each tube has a tube arc height h111, h121, h112, h122 measured in the above-mentioned symmetry plane xy, which is the minimum spacing between the associated fourth segment 111-4, 121-4, 112-4, 122-4 and the associated axis z1, z2, z3, z4 virtually connecting the associated first and second ends, in each case, which tube arc height is selected so that each tube 111, 121, 112, 122 in each case Each of the tubes 111, 121, 112, 122 has a certain tube length to tube arc height ratio, which is calculated as the quotient of the tube length of the tube and the tube arc height and is greater than 2 (2:1), for example, greater than 2.5 (2.5:1) and less than 4 (4:1), for example, less than 3 (3:1), and / or each of the tubes 111, 121, 112, 122 has in each case a certain diameter to tube arc height ratio, which is calculated as the quotient of the diameter of the tube and the tube arc height and is greater than 0.1, for example also less than 0.2. In addition, also as Figure 4A and Figure 4BAs shown in, or as can be seen from a combination thereof, the oscillation sensor 41 can be placed at the pipe segment 111-3 of the pipe 111 spaced apart from both the pipe segment 111-2 and the pipe segment 111-4, and at the pipe segment 121-3 of the pipe 121 spaced apart from both the pipe segment 121-2 and the pipe segment 121-4, and the oscillation sensor 42 can be placed at the pipe segment 111-6 of the pipe 111 spaced apart from both the pipe segment 111-4. -5, and at the pipe section 121-5 of the pipe 121 spaced apart from both the pipe section 121-6 and the pipe section 121-4, the oscillation sensor 43 may be placed at the pipe section 112-3 of the pipe 112 spaced apart from both the pipe section 112-2 and the pipe section 112-4, and at the pipe section 122-3 of the pipe 122 spaced apart from both the pipe section 122-2 and the pipe section 122-4, and the oscillation sensor 44 may be placed at the pipe section 112-5 of the pipe 121 spaced apart from both the pipe section 112-6 and the pipe section 121-4. 112-6 and at the pipe section 112-5 of the pipe 112 spaced apart from both the pipe section 112-4, and at the pipe section 122-5 of the pipe 122 spaced apart from both the pipe section 121-6 and the pipe section 122-4; this also makes it possible, for example, for the oscillation sensor 41 to be partially located between the pipe sections 111-3 and 112-3 and also partially located between the pipe sections 121-3 and 122-3, and for the oscillation sensor 42 to be partially located between the pipe sections 111-3 and 112-3. 111-5 and the pipe section 112-5 and also partially between the pipe section 121-5 and the pipe section 122-5, and / or the oscillation sensor 43 is partially located between the pipe section 111-3 and the pipe section 112-3 and also partially between the pipe section 121-3 and the pipe section 122-3, and the oscillation sensor 44 is partially located between the pipe section 111-5 and the pipe section 112-5 and also partially between the pipe section 121-5 and the pipe section 122-5. In addition, the oscillation sensors 41, 42 can be equidistant in each case from the pipe section 111-4 and also equidistant in each case from the pipe section 121-4, and / or the oscillation sensors 43, 44 can be equidistant in each case from the pipe section 112-4 and also equidistant in each case from the pipe section 122-4. Alternatively or in addition, from Figure 4A and Figure 4BOr a combination thereof, it can also be seen that the oscillation exciter 31 can be placed on the pipe segment 111-4 of the pipe 111 spaced apart from the pipe segment 111-3 and also from the pipe segment 111-5, and placed on the pipe segment 121-4 of the pipe 121-4 spaced apart from the pipe segment 121-3 and also from the pipe segment 121-5, and the oscillation exciter 32 can be placed on the pipe segment 112-4 of the pipe 112 spaced apart from the pipe segment 112-3 and also from the pipe segment 112-5, and placed on the pipe segment 122-3 and also from the pipe segment 122-3. The oscillation exciter 31 is equidistantly spaced from the pipe section 111-3 and the pipe section 111-5 of the pipe 111, and is also equidistantly spaced from the pipe section 121-3 and the pipe section 121-5 of the pipe 121, and / or the oscillation exciter 32 is equidistantly spaced from the pipe section 112-3 and the pipe section 112-5 of the pipe 112, and is also equidistantly spaced from the pipe section 122-3 and the pipe section 122-5 of the pipe 122. In addition, as Figure 4A As shown in FIG. 1 , the two tubes 111, 112 can be embodied and positioned so that the virtual longitudinal axis of the straight tube section 111-3 of the tube 111 and the virtual longitudinal axis of the straight tube section 112-3 of the tube 112 are formed when extended (at least protrude on the above-mentioned virtual symmetry plane yz of the tube arrangement, in this case also on Figure 4A The virtual longitudinal axis of the straight tube section 111-5 of the tube 111 and the virtual longitudinal axis of the straight tube section 112-5 of the tube 112 form a second intersection angle α11-5 when extended (at least protruding on the above-mentioned virtual symmetry plane yz of the tube arrangement). Similarly, such as Figure 4B As shown in FIG. 1 , the other two tubes 121, 122 can also be embodied and positioned so that the virtual longitudinal axis of the straight tube section 121-3 of the tube 121 and the virtual longitudinal axis of the straight tube section 122-3 of the tube 122 are formed when extended (at least protrude on the above-mentioned virtual symmetry plane yz of the tube arrangement, in this case, also Figure 4BThe second intersection angle α12-3 is formed when the virtual longitudinal axis of the straight tube section 121-5 of the tube 121 and the virtual longitudinal axis of the straight tube section 122-5 of the tube 122 are extended to form (at least protrude on the above-mentioned virtual symmetry plane yz of the tube device) a fourth intersection angle α12-5. Each of the above-mentioned intersection angles α11-3, α11-5, α12-3, α12-5 is an acute angle, that is, greater than 0° and less than 90°. At least two of the intersection angles α11-3, α11-5 may also be of the same size, for example. Alternatively or in addition, the two intersection angles α12-3, α12-5 may also be of the same size. In addition, in an additional embodiment of the present invention, it is provided that each of the above-mentioned intersection angles α11-3, α11-5, α12-3 and α12-5 is in each case greater than 0.1, for example not less than 0.2°-, and less than 10-, for example not greater than 5-. From Figure 4A , Figure 4B It can be seen from the combination of the tubes 111, 121, 112, and 122 that the tubes 111, 121, 112, and 122 may also be further embodied or arranged such that the minimum spacing Δ11-4 between the arcuate tube segment 111-4 of the tube 111 and the arcuate tube segment 112-4 of the tube 112 is greater than the minimum spacing Δ11-3 between the straight tube segment 111-3 of the tube 111 and the arcuate tube segment 112-2 of the tube 112, and is also greater than the minimum spacing Δ11-5 between the straight tube segment 111-5 of the tube 111 and the arcuate tube segment 112-6 of the tube 112. Similarly, the minimum spacing Δ11-5 between the arcuate tube segment 121-4 of the tube 121 and the arcuate tube segment 122 is greater than the minimum spacing Δ11-6 between the straight tube segment 111-5 of the tube 111 and the arcuate tube segment 112-6 of the tube 112. The minimum spacing Δ12-4 between the curved tube segments 122-4 is also greater than the minimum spacing Δ12-3 between the straight tube segment 121-3 of the tube 121 and the curved tube segment 122-2 of the tube 122, and is also greater than the minimum spacing Δ12-5 between the straight tube segment 121-5 of the tube 121 and the curved tube segment 122-6 of the tube 122; this also allows, for example, the oscillation exciter 31 to be positioned partially between the tube segment 111-4 and the tube segment 112-4 of the tube 111, and also partially between the tube segment 121-4 and the tube segment 122-4, and / or also as in each case in Figure 4A and Figure 4B As shown in FIG. 1 , the oscillation exciter 32 may be positioned partially between the pipe segment 111 - 4 and the pipe segment 112 - 4 , and also partially between the pipe segment 121 - 4 and the pipe segment 122 - 4 .

[0048] In order to protect the tubes of the tube arrangement and other components of the measuring transducer applied thereto, in particular all the above-mentioned oscillation exciters 31, 32 and oscillation sensors 41, 42, 43, 44 from damaging environmental influences, to prevent the emission of undesirable sounds of the vibrating tubes and even to contain fluid lost from a leaking tube arrangement, in an additional embodiment of the invention, the measuring transducer further comprises (and is also very common in the case of measuring transducers of the type being discussed or measuring systems formed thereby) a transducer housing 200, which encloses the tubes 111, 121, 112, 122 of the tube arrangement. The transducer housing 200 comprises at least one cavity 200*, for example a liquid-tightly sealed cavity 200*, from which Figure 1 , Figure 2A , Figure 2B , Figure 3A and Figure 3B It can also be seen that each tube 111, 121, 112, 122 of the tube arrangement is arranged in the cavity. The transducer housing can have, for example, a certain pressure resistance, which is greater than the maximum pressure resistance of the tubes of the tube arrangement and / or exceeds 50 bar. Figure 1 , Figure 2A , Figure 2B , Figure 3A , Figure 3B In the case of the example of the embodiment shown in , the transducer housing 200 comprises a support element 200-1 extending from a first end to a second end with a certain support element length, wherein the support element 200-1 is mechanically connected at its first end to the shunt 21 and at its second end to the shunt 22, in particular by material bonding. The support element 200-1 comprises at least one hollow space 200*-1, which is surrounded by a wall (e.g. a metal wall) and forms a part of the cavity 200* of the transducer housing 200, and can be embodied, for example, in particular cylindrical, in given cases also at least partially hollow cylindrical or tubular. The wall of the support element 200-1 can be, for example, steel, such as stainless steel or structural steel, and / or the same material as the wall of the tube 111, 121, 112, 122. The support element can be used to collect mechanical forces and / or moments etc. introduced into the measuring transducer via the connected process pipeline during operation of the measuring system, in particular so that no or only a very small part of these forces and / or moments, i.e. a part that is negligible for the desired accuracy of the measuring system, is transmitted to the tube arrangement arranged in the transducer housing. In addition to the support element, in the case of the embodiment example shown here, the transducer housing 200 also includes an envelope element 200-2, which is mechanically connected to the support element 200-1 of the transducer housing, for example by material bonding. Figure 1 , Figure 2A , Figure 3A and Figure 3BAs can also be seen from the combination of, the envelope element 200-2 can be embodied as a tube, for example, so that it has a hollow space 200*-2, especially a cylindrical hollow space, surrounded by a wall and forming a part of the cavity 200*. As an alternative, the envelope element 200-2 can also be a cap-shaped, for example, so that the wall of the envelope element and a section of the wall of the support element form or envelop the hollow space 200*-2. Figure 3A , Figure 3B It can also be seen that the transducer housing and the tube arrangement are further embodied such that each tube 111, 121, 112, 122 of the tube arrangement is only partially located within the hollow space 200*-1 of the support element 200-1, and each tube 111, 121, 112, 122 is only partially arranged within the hollow space 200*-2 of the envelope element 200-2; such as from Figure 3A , Figure 3B As can be seen, this also means, for example, that each tube section 111-4, 121-4, 112-4, 122-4 is exclusively arranged in the hollow space 200*-2 of the envelope element 200-2, and / or each tube section 111-3, 121-3, 112-3, 122-3, 111-5, 121-5, 112-5, 122-5 is at least predominantly arranged in the hollow space 200*-2 of the envelope element 200-2, and / or each tube section 111-2, 121-2, 112-2, 122-2, 111-6, 121-6, 112-6, 122-6 is at least predominantly arranged in the hollow space 200*-2 of the envelope element 200-2. At least predominantly arranged outside the hollow space 200*-2 of the envelope element 200-2, and conversely, each second tube segment 111-2, 121-2, 112-2, 122-2, 111-6, 121-6, 112-6, 122-6 of the tube is at least predominantly arranged in the hollow space 200*-1 of the envelope element 200-1, and / or each tube segment 111-3, 121-3, 112-3, 122-3, 111-5, 121-5, 112-5, 122-5 of the tube is at least predominantly arranged outside the hollow space 200*-1 of the envelope element 200-1. In order to guide the tubes 111, 121, 112, 122 laterally through the support element 200-1, in an additional embodiment of the invention, its wall comprises a first cavity 200-1a and at least one second cavity 200-1b spaced apart from the cavity 200-1a along a virtual surface element of the wall. Figure 3A and Figure 3B It can be seen directly that each of the two cavities 200-1a, 200-1b in each case forms a partial cavity 200* of the transducer housing 200. Furthermore, each tube 111, 121, 112, 122 of the tube arrangement in each case extends through cavity 200-1a and also through cavity 200-1b.

[0049] In order to prevent the vibrating tubes from making damaging measurement contacts with each other or with the transducer housing, each tube 111, 121, 112, 122 has only such a spacing from the other tubes and also from the transducer housing 200, in particular from the edge of each of the two cavities 200-1a, 200-1b in the wall of the support element 200-1, that in each case allows free oscillation with a sufficient oscillation amplitude for measurement under all operating conditions. In an embodiment of the invention, therefore, each tube 111, 121, 112, 122 of the tube arrangement has in each case a minimum spacing from the transducer housing 200 and / or from each of the other tubes of the tubes 111, 121, 112, 122, which is greater than 5 mm. Thus, each tube also has in each case a minimum spacing from the edge of the cavity 200-1a and in each case a minimum spacing from the edge of the cavity 200-1b, which is greater than 5 mm. On the other hand, in order to also be able to provide a measuring transducer that is as compact as possible, according to an additional embodiment, it is provided that one or more, and in given cases also each, of the above-mentioned minimum spacings are kept below 10 mm. In an additional embodiment of the invention, it is also provided that in the cavity 200-1a and in the cavity 200-1b, the minimum spacing between the tube 111 and the tube 112 is in each case smaller than the above-mentioned minimum spacing between the tube section 111-4 of the tube 111 and the tube section 112-4 of the tube 112, and in the cavity 200-1a and in the cavity 200-1b, the minimum spacing between the tube 121 and the tube 122 is in each case smaller than the above-mentioned minimum spacing between the fourth tube section 121-4 of the tube 121 and the tube section 122-4 of the fourth tube 122.

[0050] In addition to the measuring transducer MW, the measuring system also comprises measuring and operating electronics ME electrically coupled thereto, i.e. electrically coupled to the above-mentioned exciter device to the measuring transducer and also electrically coupled to the above-mentioned sensor device to the measuring transducer, e.g. via corresponding electrical connecting lines. The measuring and operating electronics ME of the measuring system of the invention comprises two, e.g. identically constructed, driver circuits (Exc1, Exc2) to supply electrical power to the exciter device, wherein the first driver circuit Exc1 is suitable for generating an electrical first driver signal e31 and by means of which, e.g., only or exclusively, electrical power is supplied to the oscillation exciter 31, so that the first and second tubes 111, 112 at least partially perform the required oscillation, i.e., have at least a first required frequency f N1The invention relates to a method for producing opposite and equal forced mechanical oscillations of the third and fourth tubes 121, 122, i.e., an oscillation frequency predetermined by the driver signal e31 and suitable for generating in each case a mass flow-dependent Coriolis force in the measured substance flowing through the tubes 111, 112, and wherein the second driver circuit Exc2 is suitable for generating an electrical second driver signal e32 and for supplying electrical power therethrough, for example exclusively or exclusively, to the oscillation exciter 32, so that the third and fourth tubes 121, 122 at least partially perform the desired oscillations, i.e., have at least a second desired frequency f N2 The first desired frequency f is predetermined by the driver signal e32 and is suitable for generating a mass flow-dependent Coriolis force in the measured substance flowing through the third and fourth tubes. N1 For example, it may correspond to a first resonance frequency of the tube arrangement depending on the density of the fluid FL conveyed in the tube arrangement, for example to the lowest common resonance frequency of the first tube pair formed by the tubes 111, 121, and the second desired frequency f N2 For example, it may correspond to a second resonance frequency of the tube arrangement which depends on the density of the fluid FL conveyed in the tube arrangement and which in given cases also differs from the first resonance frequency, for example, corresponds to the lowest common resonance frequency of the second tube pair formed by the tubes 111, 121. Furthermore, in an additional embodiment of the invention, it is provided that the oscillation exciter 31 is only or exclusively electrically connected to the driver circuit Exc1, and the oscillation exciter 32 is only or exclusively electrically connected to the driver circuit Exc2, and therefore it is provided that during operation, the driver circuit Exc1 does not feed electrical power to the oscillation exciter 32 and the driver circuit Exc2 does not feed electrical power to the oscillation exciter 31.

[0051] Furthermore, the measuring and operating electronics are also provided and adapted to receive and evaluate the above-mentioned oscillating measurement signals s41, s42, s43, s44, for example, based on the above-mentioned first phase difference And / or based on the second phase difference To generate a (total) mass flow measurement value (X) representing the mass flow of the measured substance FL m ), and / or at least based on at least one signal frequency of the at least one oscillating measurement signal s41, s42, s43, s44, for example based on a signal frequency corresponding to the above-mentioned first desired frequency of the at least one oscillating measurement signal s41, s42, and / or based on a signal frequency corresponding to the above-mentioned second desired frequency of the at least one oscillating measurement signal s43, s44, to generate a (total) density measurement value (X) representing the density of the fluid FL ρAlternatively or in addition, the measuring and operating electronics may also be provided with or adapted to generate a (total) viscosity measurement value (X) representative of the viscosity of the measured substance FL based on at least one oscillating measurement signal s41, s42, s43, s44 and / or at least one of the above-mentioned driver signals e31, e32. η ).

[0052] In order to process the oscillating measurement signal of the sensor device and activate the driver circuit, Figure 6 As schematically shown in FIG. 1 , the measuring and operating electronics ME of the measuring system of the invention comprises a first measuring transmitter circuit DSV1 and at least a second measuring transmitter circuit DSV2, wherein the measuring transmitter circuit DSV1 is adapted to receive and process an oscillating measurement signal s41 of the oscillation sensor 41 and an oscillating measurement signal s42 of the oscillation sensor 42, i.e. to determine a first partial mass flow measurement value X representing a mass flow m1 of the measured substance (FL12) flowing through the first and second pipes 111, 112. m1 and outputs it to the measuring transmitter circuit DSV2, wherein the measuring transmitter circuit DSV2 is adapted to receive and process the oscillating measurement signal s43 of the oscillation sensor 43 and the oscillating measurement signal s44 of the oscillation sensor 44, as well as the first partial mass flow measurement value X outputted from the measuring transmitter circuit DSV1. m1 , i.e. determining a digital total flow measurement value X representing the total mass flow m of the measured substance FL flowing through the first, second, third and fourth tubes 111, 112, 121, 122 m Thus, the measuring transmitter circuit DSV1 can in particular also be adapted to determine the above-mentioned phase difference between the oscillating measurement signals s41 , s42 And the first part mass flow measurement value X is calculated based on the above phase difference m1 , and the measuring transmitter circuit DSV2 can in particular also be adapted to determine the above-mentioned phase difference between the oscillating measuring signals s43, s44 And in calculating the total mass flow measurement value X m The phase difference is included.

[0053] Furthermore, in an additional embodiment of the invention, it is provided that both the oscillation sensor 41 and the oscillation sensor 42 are in each case electrically connected only or exclusively to the measuring transmitter circuit DSV1, and that both the oscillation sensor 43 and the oscillation sensor 44 are in each case electrically connected only or exclusively to the measuring transmitter circuit DSV2. In an additional embodiment of the invention, the measuring transmitter circuit DSV1 is adapted to process the oscillation measurement signals s41, s42 and to activate the driver circuit Exc1, e.g. to calculate an expected value based on the first and / or second oscillation measurement signal to generate a driver signal e31 and to send it to the driver circuit Exc1, and / or the measuring transmitter circuit DSV2 is adapted to process the oscillation measurement signals s43, s44 and to activate the driver circuit Exc2, e.g. to calculate an expected value based on the third and / or fourth oscillation measurement signal to generate a driver signal e32 and to send it to the driver circuit Exc2. In addition, the driver circuit Exc1 may also be adapted to determine an amplitude value representing the signal amplitude of the driver signal e31 and output it to the measurement transmitter circuit DSV1, and / or the driver circuit Exc2 may also be adapted to determine an amplitude value representing the signal amplitude of the driver signal e32 and output it to the measurement transmitter circuit DSV2. In addition, the measurement transmitter circuit DSV1 may also be adapted to also send an expected value to the measurement transmitter circuit DSV2 to generate the driver signal e31, and / or send an amplitude value of the signal amplitude of the driver signal e31 received from the driver circuit Exc1, and the measurement transmitter circuit DSV2 may be further adapted to receive and process the expected value or amplitude value, for example including them together with the expected value for generating the driver signal e32, and / or including them together with the amplitude value for the signal amplitude of the driver signal e32, to calculate the above-mentioned viscosity measurement value X η. Thus, for example, the driver circuit Exc1 can be electrically connected to the measurement transmitter circuit DSV1, and / or the driver circuit Exc2 can be electrically connected to the measurement transmitter circuit DSV2, and / or the measurement transmitter circuit DSV1 can be electrically connected to the measurement transmitter circuit DSV2, for example via one or more data buses of the measuring and operating electronic device. Furthermore, in an additional embodiment of the invention it is provided that, however, the driver circuit Exc1 is not electrically connected to the measurement transmitter circuit DSV2, and / or, however, the driver circuit Exc2 is not electrically connected to the measurement transmitter circuit DSV1. Furthermore, for example, in each case, the two measurement transmitter circuits DSV1, DSV2 can each be formed by a suitable microprocessor. Thus, according to an additional embodiment of the invention, the measurement transmitter circuit DSV1 is formed by a first microprocessor μC1, and the measurement transmitter circuit is formed by a second microprocessor μC2 (for example, embodied as a microprocessor identical to the microprocessor μC1). Furthermore, in an additional embodiment of the invention, the measuring transmitter circuit DSV2 is also adapted to determine, using the third and fourth oscillating measurement signals s43, s44, a second partial mass flow measurement value X representing the mass flow m2 of the measured substance FL34 flowing through the third and fourth pipes 121, 122, in particular a digital second partial mass flow measurement value X m2 , for example, thereby also using the second partial mass flow measurement value X m2 To determine the total flow measurement value X m , for example, by repeatedly adding the instantaneous second partial mass flow measurement value to the first partial mass flow measurement value at the corresponding time.

[0054] As mentioned above, furthermore, the measuring system of the invention can also be embodied to measure the density of the measured substance. Thus, furthermore, the measuring transmitter circuit DSV1 according to the additional embodiment of the invention is adapted to determine, based on at least one of the first and second oscillating measurement signals s41, s42, a first partial density measurement value X representing the density ρ1 of the measured substance FL12 flowing through the first and second tubes 111, 112, in particular a digital first partial density measurement value X. ρ1 , and outputs it to the measurement transmitter circuit DSV2. The measurement transmitter circuit DSV2 may then be further adapted to receive the outputted first partial density measurement value X from the measurement transmitter circuit DSV1. ρ1 , and based on the first density measurement X ρ1and at least one of the third and fourth oscillating measurement signals s43, s44 for determining a density p, for example an average density, representative of the measured substance FL flowing through the tubes 111, 112, 121, 122 or of the tube arrangement formed thereby. Alternatively or as a supplement, furthermore, the measurement transmitter circuit DSV2 may also be adapted to determine, based on at least one of the third and fourth oscillating measurement signals s43, s44, a second partial density measurement value X representative of the density p2 of the measured substance FL34 flowing through the third and fourth tubes 121, 122. ρ2 , for example, receiving the first partial density measurement value X output by the measurement transmitter circuit DSV1 ρ1 , and based on the first and second partial density measurements X ρ1 , X ρ2 To determine the total density measurement X ρ .

[0055] In order to further improve the measured values, in particular the first and second partial density measured values ​​X ρ1 , X ρ2 , and the total density measurement X ρ The accuracy of Figure 3B According to an additional embodiment of the invention, the sensor device comprises at least two, for example also identically constructed and / or spaced apart from each other, temperature sensors (51, 52, 53), wherein the first temperature sensor 51 is in particular precisely one of the tubes 111, 112, 121, 122 mechanically connected to the tube device, and also as shown in FIG. Figure 7 , in particular only or exclusively electrically connected to the measuring transmitter circuit DSV2, and wherein the second temperature sensor 52 is also precisely mechanically connected to one of the tubes 111, 112, 121, 122, and also as shown in FIG. Figure 7 , in particular only or exclusively electrically connected to the measuring transmitter circuit DSV2. Furthermore, each of the above-mentioned temperature sensors 51, 52 is in each case suitable for recording the temperature of the tube to which it is mechanically connected and for providing first and second temperature measurement signals θ51, θ52, in particular electrical, representative of the temperature. The temperature sensor 51 can be placed, for example, on the tube 111 and the temperature sensor 52 can be placed on the other tube, for example also so that the temperature sensors 51, 52 are in each case positioned at the same distance from the shunt 21 and / or in the vicinity thereof; however, it is also possible to Figure 3B As shown in FIG. 5 , the temperature sensors 51 , 52 can for example also be placed in each case on the same tube and / or even be positioned such that, for example Figure 3BAs shown in FIG. 1 , the temperature sensor 51 is spaced apart from the shunt 21, in the same way that the temperature sensor 52 is spaced apart from the shunt 22. Furthermore, the measurement transmitter circuit DSV2 is also adapted to receive and process a first temperature measurement signal θ51 from the temperature sensor 51, i.e. to determine a first temperature measurement value X, in particular a digital value, recorded by the temperature sensor 51 and representing the temperature associated therewith. θ1 Furthermore, the measurement transmitter circuit DSV2 is also adapted to receive and process a second temperature measurement signal θ52 from the temperature sensor 52, ie to determine a second temperature measurement value X recorded by the temperature sensor 52 and representing the temperature associated therewith. θ2 In an additional embodiment of the invention, the measuring transmitter circuit DSV2 is further adapted to measure the temperature by applying the temperature measurement value X θ1 , X θ2 To determine the total mass flow measurement and / or total density measurement X ρ In addition, the measurement transmitter circuit DSV2 may also be adapted to output at least the temperature measurement value X θ1 And even for each temperature measurement X θ1 , X θ2 to the measuring transmitter circuit DSV1, and the measuring transmitter circuit DSV1 can then be correspondingly adapted to receive and evaluate the temperature measurement value outputted from the measuring transmitter circuit DSV2, for example thereby also using at least the temperature measurement value X θ1 , in given cases also by applying the temperature measurement X θ1 And the temperature measurement value X θ2 The first part of the mass flow measurement value X is determined by the two m1 and / or the first density measurement X ρ1 Furthermore, the measurement transmitter circuit DSV2 can be adapted to measure the temperature based on the temperature measurement signals θ51, θ52 or the temperature measurement values ​​X θ1 , X θ2 , determine the measured temperature value X of the measured substance representing the temperature of the measured substance FL θFL .

[0056] In another embodiment of the invention, the sensor device comprises at least a third temperature sensor 53, also as Figure 3B As shown in , the third temperature sensor 53 is mechanically connected to the transducer housing 200 and, for example, only or exclusively electrically connected to the measuring transmitter circuit DSV2 and is further adapted to record the temperature of the transducer housing and to provide a third temperature measurement signal θ53 representative of the temperature, in particular an electrical signal. Figure 7 As shown in FIG. 1 , the measurement transmitter circuit DSV2 may be adapted to receive and process the temperature measurement signal θ53 of the temperature sensor 53, ie to determine a third temperature measurement value X, in particular a digital value, recorded by the temperature sensor 53 and representing the temperature associated therewith.θ3 In an additional embodiment of the invention, the measuring transmitter circuit DSV2 is additionally adapted to also use the temperature measurement value X θ3 The total mass flow measurement and / or total density measurement X is determined ρ and / or the measured temperature value X of the measured substance θFL In addition, the measurement transmitter circuit DSV2 can also be adapted to transmit the temperature measurement value X θ3 The temperature measurement value X output by the measuring transmitter circuit DSV2 is output to the measuring transmitter circuit DSV1, and the measuring transmitter circuit DSV1 can also be correspondingly adapted to receive and evaluate the temperature measurement value X output by the measuring transmitter circuit DSV2. θ3 , for example also using at least one temperature measurement value X θ3 To determine the first part of the mass flow measurement value X m1 and / or the first density measurement X ρ1 .

[0057] from Figure 6 It can be seen that according to an additional embodiment of the invention, a measuring and operating electronic device ME is provided, which is in particular electrically connected to the measuring transmitter circuit DSV2 and, moreover, also to the interface circuit COM for outputting the measured values ​​(x m ), for example, digital measured values ​​determined by the measuring transmitter circuit DSV2 and / or measured values, for example, as a total mass flow measured value X m Thus, furthermore, according to an additional embodiment of the invention, the measurement transmitter circuit DSV2 is adapted to transmit the total flow measurement value X determined by it to m The interface circuit COM is output to the interface circuit, and the interface circuit is additionally adapted to receive the total mass flow measurement value X output by the measurement transmitter circuit DSV2. m , and converts it to provide a total mass flow measurement X m The mass flow output signal x m , for example in accordance with the following industry standards: DIN IEC 60381-1:1985-11, IEC 61784-1CPF1 (Foundation Fieldbus), IEC 61784-1CPF3 (Profibus), IEC 61158 or IEC 61784-1CPF9 (HART). The interface circuit COM can also be electrically connected to, for example, the measuring transmitter circuit DSV2, and likewise not electrically connected to the measuring transmitter circuit DSV1. Furthermore, the measuring transmitter circuit DSV2 is also suitable for outputting the total density measurement value X ρ and / or the measured temperature value X of the measured substance θFL to the interface circuit COM, and the interface circuit COM can thus also be adapted to convert these measured values ​​into a density output signal x as required ρOr the temperature output signal x θ , or provide the total density measurement X as appropriate ρ Or the measured temperature value X θFL , for example in accordance with one of the above mentioned industry standards.

[0058] In addition, Figure 1 , Figure 2A and Figure 2B In each case shown, the measuring and operating electronic device ME is arranged in an electronic device protective housing 100, in particular explosion-proof or pressure-resistant and / or protects the measuring and operating electronic device ME at least from water splashes; this in particular means that the driver circuits Exc1, Exc2 and the measuring transmitter circuits DSV1, DSV2, in particular the above-mentioned interface circuit COM, etc., are all located in the electronic device protective housing 100.

Claims

1. A vibration measurement system for measuring and / or monitoring at least one flow parameter and / or for measuring and / or monitoring at least one material parameter of a flowing measured material, the measurement system comprising: - a measuring transducer (MW) having: a pipe device for conveying the flowing substance to be measured, - exciter means for converting electrical power into mechanical power to excite and maintain forced mechanical oscillations of the tube means, and a sensor device for recording the mechanical oscillations of the tube device and for providing in each case an oscillation measurement signal representative of the oscillating movement of the tube device; as well as - measuring and operating electronics (ME) which are electrically coupled to the measuring transducer (MW), i.e. to the exciter means and the sensor means of the measuring transducer via electrical connecting lines, and which have, a first driver circuit (Exc1) for providing electrical power to the exciter device, a first measurement transmitter circuit (DSV1) for processing the oscillating measurement signal of the sensor device and for activating the first driver circuit, a second driver circuit (Exc2) for providing electrical power to the exciter device, and a second measurement transmitter circuit (DSV2) for processing the oscillating measurement signal of the sensor device and for activating the second driver circuit; - wherein the tube device comprises: - a first diverter (21); - a second shunt (22), and -- Four tubes of identical construction only in pairs, i.e. ---First tube (111), ---a second tube (121), the second tube having the same structure as the first tube, ---The third tube (112), and ---a fourth tube (122), the fourth tube having the same structure as the third tube, wherein each of the first tube, the second tube, the third tube and the fourth tube of the tube arrangement extends over a certain tube length, in each case from a first end of the tube to a second end of the tube, and in each case comprises a lumen surrounded by a tube wall, and the lumen in each case extends from the first end of the tube to the second end of the tube, wherein each of the first, second, third and fourth tubes of the tube arrangement is in each case connected to each of the first flow divider and the second flow divider, such that ---the first tube is connected at its first end to the first flow opening of the first flow splitter (21) and at its second end to the first flow opening of the second flow splitter (22), ---the second tube is connected at its first end to the second flow opening of the first flow splitter (21) and at its second end to the second flow opening of the second flow splitter (22), The third tube is connected at its first end to the third flow opening of the first flow splitter (21) and at its second end to the third flow opening of the second flow splitter (22), and The fourth tube is connected at its first end to the fourth flow opening of the first flow splitter (21) and at its second end to the fourth flow opening of the second flow splitter (22), and --- wherein each of the first tube, the second tube, the third tube and the fourth tube of the tube arrangement is in each case suitable for a substance to be measured to flow through and during which it is caused to vibrate; - wherein the exciter device comprises two oscillation exciters (31, 32), wherein: a first oscillation exciter (31) mechanically coupling both the first tube and the second tube and electrically connecting the first driver circuit, and a second oscillation exciter (32) mechanically coupling the third tube and the fourth tube and electrically connecting the second driver circuit, - wherein each of the first oscillation exciter (31) and the second oscillation exciter (32) is in each case suitable for converting electrical power into mechanical power; - wherein the first driver circuit is adapted to generate an electrical first driver signal (e31) and thereby supply electrical power to the first oscillation exciter (31) so that the first tube and the second tube at least partially perform desired oscillations, i.e. oppositely equal forced mechanical oscillations having at least a first desired frequency, i.e. an oscillation frequency predetermined by the first driver signal and corresponding to a first resonance frequency of the tube arrangement, which oscillations are suitable for generating Coriolis forces in the measured substance flowing through the first tube and the second tube, which in each case depend on the mass flow rate, and - wherein the second driver circuit is adapted to generate an electrical second driver signal (e32) and thereby supply electrical power to the second oscillation exciter (32) so that the third tube and the fourth tube at least partially perform desired oscillations, i.e. oppositely equal forced mechanical oscillations having at least a second desired frequency, i.e. an oscillation frequency predetermined by the second driver signal and corresponding to a second resonance frequency of the tube arrangement, which oscillations are suitable for generating Coriolis forces in the measured substance flowing through the third tube and the fourth tube, which in each case depend on the mass flow rate, - wherein the sensor device comprises four electric and / or identically constructed and / or spaced-apart oscillation sensors, wherein: a first oscillation sensor and a second oscillation sensor are in each case mechanically connected both to the first tube and to the second tube and are in each case electrically connected to the first measurement transmitter circuit, and a third oscillation sensor and a fourth oscillation sensor being in each case mechanically connected both to the third tube and to the fourth tube and being in each case electrically connected to the second measurement transmitter circuit, - wherein each of the first, second, third and fourth oscillation sensors is in each case adapted to record an oscillatory movement of the first, second, third or fourth tube to which it is mechanically connected and to provide a first, second, third or fourth oscillation measurement signal representing the oscillatory movement; wherein the first measurement transmitter circuit is adapted to receive and process the first oscillation measurement signal of the first oscillation sensor and the second oscillation measurement signal of the second oscillation sensor, i.e. to determine a first partial mass flow measurement value (X) representative of the mass flow m1 of the measured substance flowing through the first pipe and the second pipe m1 ), and outputs it to the second measurement transmitter circuit, and wherein the second measurement transmitter circuit is adapted to receive and process the third oscillation measurement signal of the third oscillation sensor and the fourth oscillation measurement signal of the fourth oscillation sensor, as well as the first partial mass flow measurement value output by the first measurement transmitter circuit, i.e. to determine a total flow measurement value (X) representing the total mass flow m of the measured substance flowing through the first, second, third and fourth pipes m ).

2. The measurement system according to claim 1, wherein: The vibration measurement system is a Coriolis mass flow measurement device or a Coriolis mass flow / density measurement device.

3. The measurement system according to claim 1, wherein: The at least one flow parameter is a flow parameter that can vary over time.

4. The measurement system according to claim 1, wherein: The at least one flow parameter is a mass flow, a volume flow and / or a flow velocity.

5. The measurement system according to claim 1, wherein: The at least one material parameter is a material parameter that can vary over time.

6. The measurement system according to claim 1, wherein: The at least one material parameter is density and / or viscosity.

7. The measurement system according to claim 1, wherein: The flowing substance to be measured is gas, liquid or dispersion medium.

8. The measurement system according to claim 1, wherein: The first flow divider (21) is a first flow divider used as a pipeline branch and / or a first flow divider on the inlet side, and the first flow divider has exactly four flow openings, and the second flow divider (22) is a second flow divider that is embodied as the same as the first flow divider (21) and / or used as a pipeline joint and / or a second flow divider on the outlet side, and the second flow divider has exactly four flow openings.

9. The measurement system according to claim 1, wherein: The first tube (111) is an at least partially curved first tube, and the third tube (112) is an at least partially curved third tube.

10. The measurement system according to claim 1, wherein: The tube wall is a metal tube wall.

11. The measurement system according to claim 1, wherein: The oscillation exciters are electrodynamic and / or identically constructed oscillation exciters.

12. The measurement system according to claim 1, wherein: The first oscillation exciter (31) is electrically connected only to the first driver circuit, and the second oscillation exciter (32) is electrically connected only to the second driver circuit.

13. The measurement system according to claim 1, wherein: The first driver circuit is adapted to supply electric power only to the first oscillation exciter (31), and the second driver circuit is adapted to supply electric power only to the second oscillation exciter (32).

14. The measurement system according to claim 1, wherein: The first and second oscillation sensor are in each case electrically connected only to the first measurement transmitter circuit, and the third and fourth oscillation sensor are in each case electrically connected only to the second measurement transmitter circuit.

15. The measurement system according to claim 1, wherein: The first oscillation measurement signal, the second oscillation measurement signal, the third oscillation measurement signal or the fourth oscillation measurement signal is an electrical oscillation measurement signal.

16. The measurement system according to claim 1, wherein: The first partial mass flow measurement is a digital first partial mass flow measurement and the total flow measurement is a digital total flow measurement.

17. The measuring system according to any one of claims 1 to 16, - wherein the first driver circuit is electrically connected to the first measurement transmitter circuit; and / or -in, The second driver circuit is electrically connected to the second measurement transmitter circuit; and / or - wherein the first measurement transmitter circuit and the second measurement transmitter circuit are electrically connected to each other.

18. The measuring system according to claim 17, - wherein the first driver circuit is electrically connected to the first measurement transmitter circuit via a data bus and is not electrically connected to the second measurement transmitter circuit; and / or -in, The second driver circuit is electrically connected to the second measurement transmitter circuit via a data bus and is not electrically connected to the first measurement transmitter circuit; and / or - wherein the first measurement transmitter circuit and the second measurement transmitter circuit are electrically connected to each other via a digital bus.

19. The measurement system according to any one of claims 1 to 16, wherein: The first measurement transmitter circuit is formed by a first microprocessor.

20. The measurement system according to claim 19, wherein: The second measurement transmitter circuit is formed by a second microprocessor.

21. The measurement system according to any one of claims 1 to 16, wherein: The second measurement transmitter circuit is adapted to use the third oscillating measurement signal and the fourth oscillating measurement signal to determine a second partial mass flow measurement value (X) representing the mass flow m2 of the measured substance flowing through the third tube and the fourth tube m2 ).

22. The measurement system according to claim 21, wherein: The second partial mass flow measurement is a digital second partial mass flow measurement.

23. The measurement system of claim 21, wherein: The second measurement transmitter circuit is adapted to determine a total flow measurement value also using the second partial mass flow measurement value.

24. The measurement system according to any one of claims 1 to 16, wherein: The sensor device has at least two temperature sensors, wherein: a first temperature sensor is mechanically connected to one of the first tube, the second tube, the third tube and the fourth tube and in each case electrically connected to the second measurement transmitter circuit, and a second temperature sensor is mechanically connected to one of the first tube, the second tube, the third tube and the fourth tube and in each case electrically connected to the second measurement transmitter circuit, - wherein each of the first temperature sensor and the second temperature sensor is in each case suitable for recording the temperature of the first tube, the second tube, the third tube or the fourth tube to which it is mechanically connected and for providing a first temperature measurement signal or a second temperature measurement signal representative of said temperature.

25. The measurement system of claim 24, wherein: The at least two temperature sensors are temperature sensors of identical construction and / or are spaced apart from one another.

26. The measurement system of claim 24, wherein: - the first temperature sensor is mechanically connected to the first tube or to the second tube and in each case only electrically connected to the second measurement transmitter circuit, and - the second temperature sensor is mechanically connected to the same tube as the first temperature sensor and is in each case electrically connected only to the second measurement transmitter circuit, - wherein the first temperature measurement signal or the second temperature measurement signal is an electrical temperature measurement signal.

27. The measurement system of claim 24, wherein: The second measurement transmitter circuit is adapted to receive and process the first temperature measurement signal from the first temperature sensor, ie to determine a first temperature measurement value representative of or related to a temperature recorded by the first temperature sensor.

28. The measurement system of claim 27, wherein: The first temperature measurement is a digital first temperature measurement.

29. The measurement system of claim 27, wherein: The second measurement transmitter circuit is adapted to receive and process the second temperature measurement signal from the second temperature sensor, ie to determine a second temperature measurement value representative of or related to a temperature recorded by the second temperature sensor.

30. The measurement system of claim 29, wherein: The second temperature measurement is a digital second temperature measurement.

31. The measurement system of claim 29, wherein: The second measurement transmitter circuit is adapted to determine a total mass flow measurement also by applying the first temperature measurement and the second temperature measurement.

32. The measuring system according to claim 31, -in, the second measurement transmitter circuit being adapted to output at least the first temperature measurement value to the first measurement transmitter circuit, and -in, The first measurement transmitter circuit is adapted to receive and evaluate a temperature measurement value outputted from the first measurement transmitter circuit.

33. The measurement system of claim 32, wherein: The second measurement transmitter circuit is adapted to output the first temperature measurement value and the second temperature measurement value to the first measurement transmitter circuit.

34. The measurement system of claim 32, wherein: The first measurement transmitter circuit is adapted to also determine the first partial mass flow measurement value and / or the first partial density measurement value using at least the first temperature measurement value.

35. The measurement system according to any one of claims 1 to 16, further comprising: A transducer housing enclosing the first tube, the second tube, the third tube and the fourth tube, wherein the transducer housing has at least one cavity, and wherein each of the first tube, the second tube, the third tube and the fourth tube is arranged in the cavity.

36. The measurement system of claim 35, wherein: The cavity is a liquid-tightly sealed cavity.

37. The measuring system according to claim 35, - wherein the sensor device has at least a third temperature sensor, -in, The third temperature sensor is mechanically connected to the transducer housing and electrically connected to the second measurement transmitter circuit and is adapted to record the temperature of the transducer housing and to provide a third temperature measurement signal representative of said temperature.

38. The measurement system of claim 37, wherein: The third temperature sensor is electrically connected only to the second measurement transmitter circuit, and the third temperature measurement signal is an electrical third temperature measurement signal.

39. The measurement system of claim 37, wherein: The second measurement transmitter circuit is adapted to receive and process the third temperature measurement signal of the third temperature sensor, ie to determine a third temperature measurement value representing or relating to a temperature recorded by the third temperature sensor.

40. The measurement system of claim 39, wherein: The third temperature measurement value is a digital third temperature measurement value.

41. The measurement system of claim 39, wherein: The second measurement transmitter circuit is adapted to also determine a total mass flow measurement using the third temperature measurement.

42. The measuring system according to claim 41, -in, the second measurement transmitter circuit being adapted to output the third temperature measurement signal to the first measurement transmitter circuit, and -in, The first measurement transmitter circuit is adapted to receive and evaluate the third temperature measurement value, ie also use the third temperature measurement value to determine the first partial mass flow measurement value.

43. The measurement system according to any one of claims 1 to 16, further comprising an electronic equipment protective housing (100).

44. The measurement system of claim 43, wherein: The electronic equipment protection housing is an explosion-proof or pressure-resistant electronic equipment protection housing.

45. The measurement system of claim 43, wherein: Both the first driver circuit and the second driver circuit as well as the first measurement transmitter circuit and the second measurement transmitter circuit are accommodated in the electronic device protective housing (100).

46. ​​The measurement system of claim 45, wherein: Both the first and second driver circuits as well as the first and second measurement transmitter circuits are protected against being splashed with water.

47. The measuring system according to claim 43, said measuring and operating electronics (ME) further comprising: Interface circuit (COM) to output the measured value.

48. The measurement system of claim 47, wherein: The measured value is a digital measured value and / or a measured value determined by the second measurement transmitter circuit.

49. The measurement system of claim 47, wherein: The interface circuit is accommodated in the electronic equipment protective housing (100).

50. A measuring system according to any one of claims 47 to 49, -in, The interface circuit is electrically connected to the second measurement transmitter circuit; and / or - wherein the second measurement transmitter circuit is adapted to output a total flow measurement value determined thereby to the interface circuit, and wherein the interface circuit is adapted to receive the total mass flow measurement values ​​output from the second measurement transmitter circuit and to convert these values ​​into a mass flow output signal (x) providing the total mass flow measurement value m ).

51. The measurement system of claim 50, wherein: The interface circuit is not electrically connected to the first measurement transmitter circuit.

52. The measurement system of claim 50, wherein: The mass flow output signal complies with industry standards.

53. A measurement system according to any one of claims 1 to 16, wherein: The first measurement transmitter circuit is suitable for determining a first partial density measurement value representing the density ρ1 of the measured material flowing through the first tube and the second tube based on at least one of the first oscillation measurement signal and the second oscillation measurement signal, and outputting the first partial density measurement value to the second measurement transmitter circuit.

54. The measurement system of claim 53, wherein: The first partial density measurement is a digital first partial density measurement.

55. The measurement system of claim 53, wherein: The second measurement transmitter circuit is suitable for receiving a first partial density measurement value output from the first measurement transmitter circuit, and determining a total density measurement value representing the density ρ of the measured substance flowing through the first tube, the second tube, the third tube and the fourth tube based on the first partial density measurement value and at least one of the third oscillation measurement signal and the fourth oscillation measurement signal.

56. A measurement system according to any one of claims 1 to 16, wherein: The second measurement transmitter circuit is adapted to determine a second partial density measurement value representative of the density ρ2 of the measured substance flowing through the third tube and the fourth tube based on at least one of the third oscillating measurement signal and the fourth oscillating measurement signal.

57. The measurement system of claim 56, wherein: The second partial density measurement is a digital second partial density measurement.

58. The measurement system of claim 53, wherein: The second measurement transmitter circuit is suitable for receiving the first partial density measurement value output from the first measurement transmitter circuit, and determining a total density measurement value representing the density ρ of the measured material flowing through the first tube, the second tube, the third tube and the fourth tube based on the first partial density measurement value and the second partial density measurement value.

59. A measurement system according to claim 55 or 58, wherein: The total density measurement is a digital total density measurement.

60. The measurement system of claim 58, wherein: The total density measurement value represents an average density ρ of the measured substance flowing through the first tube, the second tube, the third tube, and the fourth tube.

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